#coding:utf-8
"""
========================================
1.2.1.py
Author:Denhill
Date：2018.11.11
Site:Galaxy
Description:
Status:unfinished
========================================
"""

TempStr = input('请输入带有符号的温度值：')
if TempStr[-1] in ['F','f']:
    C = (eval(TempStr[0:-1]) - 32) / 1.8
    print('转换后的温度是{:.2f}C'.format(C))
elif TempStr[-1] in ['C','c']:
    F = 1.8 * eval(TempStr[0:-1]) + 32
    print('转换后的温度是{:.2f}F'.format(F))
else:
    print('输入格式错误')